Pneumatic attachment for chairs.



PATENTED SEPT. 29, 1903.

G. B. ANDERSON. PNEUMATIG ATTACHMENT POR CHAIRS.

APPLIATION FILED DEO. 30. 3.901.

2 SHEETS-SHEET 1.

N0 MODEL.

[n @enfer No. 739,972. 'PATBNTED SEPT. 29, 1903. f G. B. ANDERSON. I PNBUMATIG ATTACHMENT FOR CHAIRS.

APPLICATION FILED DBO. o. `1901.-v No MODEL. 2 sums-SHEET z.

UNITED STATES' Patented September 29, 1903.

PATENT OFFICE.

PNEUMATIC ATTACHMENT FIOR CHAIRS.

SPECIFICATION forming part of Letters Patent N o.V 739,972, dated September 29, 1903. Application filed December 30, 1901. 'Serial No. 87,741. (No model.)

To a/ZZ whom .2i may concern,.-

Be it known that I, GUSTAF B. ANDERsoN, a sub; ect of the King of Sweden and Norway, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Pneumatic Attachments for Chairs, of which the following is a speciiication.

This invention relates to improvements in an apparatus to be used for compressing and discharging air under pressure, and while it is more especially intended to be used in connection with or as an attachment to a rockingchair for cooling the face of the occupant, yet it is applicable to other kinds. of chairs y or frames and for other purposes where air under pressure is required; and it consists in certain peculiarities of the construction, novel arrangement, and operation of the various parts thereof, as -will be hereinafter more fully set forth -and specifically claimed.

The principal object of my invention is to provide asimple and inexpensive apparatus for compressing air and discharging it in one or more jets while under pressure and also to furnish an apparatus of the above-described character inwhich the air may be compressed by the rocking of a chair.

Other objects and advantages of the invention will be disclosed in the subjoined description and explanation.

In order to enable others skilled in the art to which my invention pertains to make and use the same, I will now proceed to describe it, referring to the accompanying drawings, in which- A Figure l is a View in side elevation of a rocking-chair with an attachment embodying my invention applied thereto and showing the parts in position ready for operation. Fig. 2 is an enlarged view of the lower portion of the bellows and a part of its support, showing the latter shortened for the convenience of illustration. Fig. `3 is a plan view of a portion of said support. Fig. 4c is a central sectional viewtaken on line 4i 4 of Fig. 1 through the air discharger or distributer shown in said ligure. Fig. 5 is an enlarged longitudinal section al view of the air-controller or handpiece, showing it provided with another form of airdischarger. Fig. 6 is a view, partly in section and partly in elevation, taken on line 6 6 of Arockers o. on its lower portion.

.ing the air therein under pressure.

Fig. looking in the direction indicated by the arrows. Fig. 7 is a longitudinal view,

lpartly. in section and partly in elevation, of a portion of said handpiece or air-controller, showing still another form of an air-discharger connected thereto; and Fig. 8 is a cross-sectional view of the bellows, taken on line 8 8 of Fig. l. Fig. 9 is a perspective view of a modification in the form of the frame or support for the bellows and in the means for' operating the same, and Fig. l0 is a View in side elevation of the operating-lever therefor.

Similar letters refer to like parts throughout the different views of the drawings.

A represents a rocking-chair, which may be of the ordinary or any preferred construction and as usual is provided with a pair of Located between the rockers d of the chair and its side uprights ct is a bellows B of the well-known type, the bottom of which rests on and is supported by a' bar C, whichextends longitudinally and about 'midway between the' rockers and has on each of its ends a roller or caster 'c to cause the chair .to roll easily over the carpet or floor. A portion b of the frame of the bellows B is connected to each of the rockers by means of pieces b', located near the front and rear ends of the bellows. The portion or partition b divides the bellows into two compartments B and B2, the former being used as a storage-reservoir and the latter as a pump or compressor. The bottom of the portion B2 is provided with inlet-valves, and the portion l) or partition is also provided with a valve or valves to allow the air to pass into the reservoir. Resting on the top of the bellows or the reservoir portion B thereof and against the lower surface of the chair-seat a2 are springs d, which tend to press the upper portion of the bellows downwardly, thus hold- Projecting downwardly from the middle portion of the chair-seat a2 is a pind', which when the upper portion of the bellows is raised by iniiation will contact with the valve d2 in the top of the bellows and allow some of the com.- pressed air to escape. The lower portion Bz of the bellows is employed as a pump or compressor, while the upper portion B is used as a reservoir, as is apparent. Connected to the bellowsl and communicating with its reservoir IOO is one end of a tube D, to the other end of which is secured the handpiece or air-controller E, which is preferably made of two pieces e and e', secured together by means of glue or otherwise. This handpiece or aireontroller is formed with channels e2 and c3 and with -tubular portions e4 and e5 to engage a tube or exible hose D and the air-discharger, respectively. The inner surface of the piece c' has hinged thereto a valve e, which is actuated by means of a spring e7, and opens and closes the inner end of the channel c3, as is clearly shown in Fig. 5 of the drawings. Extending through the piece c and connected at its inner end to the valve e is a rod or stem f, which has on its outer end a button or head g,provided on its-innersurface with a piece'of felt g to close the opening thro u ghwhich the stem passes when the button is pressed inwardly. Between the valve e and the outer portion of the channel c3 and located on the stem f is a piece 7L, which also prevents the escape of air tlnough the opening in which the stem f operates. Located on one end of the handpiece or air-controller E and communicating with the channel e3 thereof is a hollow air-discharger Il, which in Figs. 1 and 4 of the drawings I have shown as being in the shape of a circular fan and as having on one of its faces a series of perforations 71', through which the air may be discharged while under pressure in a large numberof small jets. In Figs. 5 and 7 of the drawings I have shown modified forms of the air-discharger, which comprise hollow or tubular pieces II/ and ll2,contractcd at their outer ends so as to form small orifices h2 and 7a3, through which the air will be discharged with great force.

In Fig. S) of the drawings I have shown a modification in the construction of the frame which supports the bellows and in the means for operating the same, which consists of a frame A', between the uprights of which is located the bellows B, which comprises a reservoir B and a pump or compressing por- ,tion l?, as in the above-described construction, Fulcrumed on the lower portion of the frame A' is a foot-lever I, which is connected at its inner end by means of a link L to the bottom of the bellows and which is actuated by means of a spring m, secured to the lower portion of the supporting-frame, as is clearly shown in Fig. 0 ofthe drawings. In this construction the frame A is provided, as before, with sprin d, which rest on the upper surface ofthe reservoir of the bellows and against the lower surface of the top of the frame. Connected to the bellows is a tube or hose D, which is equipped at its outer end with a handpiece or air-controller E, as in the other construction, and which handpiece may have connected thereto one of the air-dischargers shown in Figs. 5 and 7 of the drawings, or, if

desired, an air-discharger of the form shown in Figs. l and 4 of the drawings.

From the foregoing and by reference to `the drawings it will be seen and clearly understood that when the construction illustrated in Fig. l is employed by rocking the chair back and forth the front and rear lower portion of the bellows will be alternately raised and lowered by reason of its connection with the rockers through the medium of the strips or pieces b', while the bottom of the bellows will remain in a fixed or stationary position on account of its being secured to the bar C, thus causing the reservoir Bto be infiated or filled with air under pressure, which may be allowed to escape through any of the air-dischargers, and thereby direct it to any portion of the face or person. It is apparent that by pressing the button g inwardly the valve c will be opened to allow the air to pass through the tube D from the bellows and out through the perforations or orifices of the air-discharger. lVhen the construction shown in Fig. f) is employed, the same operation is performed, except that the compression of the air is effected through the medium of the lever I, which may be operated by the foot, as is evident.

Having thus fully described my invention, whatI claim as new, and desire to secure' by LettersPatent, is-

l. The combination with a rocking-chair provided with a downwardly-projecting pin on its seat, of a bellows located within its frame and connected near its front and rear ends to each of the rockers of the chair, said bellows comprising a pumping portion and a reservoir having an inwardly-opening valve to contact with said pin, springs located between the upper portion of the bellows and the seat of the chair, a support horizontally and rigidly secured to the bottom of the bellows and having at each of its ends rollers to rest on the floor, a hose communicating at one of its ends with the reservoir, an aircontroller or handpiece on the other end of said hose, substantially as described. v

2. The combination with a framehavingin its upper portion a downwardly-projecting VOO IIO

pin,of a bellows havin gin its top an inwardly- 

